Mercurial > dive4elements > gnv-client
annotate gnv/src/main/java/de/intevation/gnv/action/DoExportAction.java @ 589:960ae818296e
img-Exports will get a file extension that corresponds to their mime-type (issue187).
gnv/trunk@744 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Mon, 08 Mar 2010 07:07:44 +0000 |
parents | 15af6e7ecf3a |
children | 15ac78a91d1b |
rev | line source |
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1 /** |
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2 * |
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3 */ |
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4 package de.intevation.gnv.action; |
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5 |
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6 import de.intevation.gnv.action.sessionmodel.SessionModel; |
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7 import de.intevation.gnv.action.sessionmodel.SessionModelFactory; |
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8 |
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9 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient; |
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10 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory; |
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11 |
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12 import de.intevation.gnv.artifactdatabase.objects.DefaultInputParameter; |
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13 import de.intevation.gnv.artifactdatabase.objects.ExportMode; |
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14 import de.intevation.gnv.artifactdatabase.objects.InputParameter; |
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15 import de.intevation.gnv.artifactdatabase.objects.OutputMode; |
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16 import de.intevation.gnv.artifactdatabase.objects.OutputParameter; |
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17 |
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18 import java.io.OutputStream; |
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19 |
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20 import java.util.ArrayList; |
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21 import java.util.Collection; |
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22 import java.util.Iterator; |
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23 |
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24 import javax.servlet.http.HttpServletRequest; |
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25 import javax.servlet.http.HttpServletResponse; |
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26 |
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27 import org.apache.log4j.Logger; |
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28 |
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29 import org.apache.struts.action.ActionForm; |
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30 import org.apache.struts.action.ActionForward; |
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31 import org.apache.struts.action.ActionMapping; |
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32 |
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33 /** |
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34 * @author Tim Englich <tim.englich@intevation.de> |
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35 * |
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36 */ |
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37 public class DoExportAction extends ArtifactDatabaseActionBase { |
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38 |
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39 /** |
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40 * the logger, used to log exceptions and additonaly information |
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41 */ |
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42 private static Logger log = Logger.getLogger(DoExportAction.class); |
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43 |
29
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44 /** |
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45 * Constructor |
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46 */ |
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47 public DoExportAction() { |
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48 super(); |
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49 } |
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50 |
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51 /** |
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52 * @see de.intevation.gnv.action.ArtifactDatabaseActionBase#execute(org.apache.struts.action.ActionMapping, |
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53 * org.apache.struts.action.ActionForm, |
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54 * javax.servlet.http.HttpServletRequest, |
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55 * javax.servlet.http.HttpServletResponse) |
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56 */ |
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57 @Override |
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58 public ActionForward execute( |
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59 ActionMapping mapping, |
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60 ActionForm form, |
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61 HttpServletRequest request, |
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62 HttpServletResponse response) |
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63 throws Exception |
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64 { |
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65 try { |
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66 String target = request.getParameter("target"); |
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67 String mimeType = request.getParameter("mimetype"); |
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68 String mode = request.getParameter("mode"); |
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69 |
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70 log.debug("Target: " + target); |
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71 log.debug("MimeType: " + mimeType); |
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72 log.debug("ExportMode: " + mode); |
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73 |
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74 SessionModel sm = SessionModelFactory.getInstance() |
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75 .getSessionModel(request); |
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76 OutputMode outputMode = sm.getOutputMode(target); |
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77 if (outputMode != null) { |
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78 ExportMode exportMode = outputMode.getExportMode(mode); |
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79 |
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80 if (target.equals(mode) || (exportMode != null |
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81 && exportMode.getMimeType().equals(mimeType))) |
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82 { |
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83 Collection<OutputParameter> inputParameter = outputMode |
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84 .getOutputParameters(); |
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85 Collection<InputParameter> ips = null; |
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86 if (inputParameter != null) { |
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87 ips = new ArrayList<InputParameter>(inputParameter.size()); |
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88 Iterator<OutputParameter> it = inputParameter.iterator(); |
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89 while (it.hasNext()) { |
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90 String name = it.next().getName(); |
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91 String[] values = request.getParameterValues(name); |
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92 InputParameter ip = new DefaultInputParameter(name, |
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93 values); |
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94 ips.add(ip); |
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95 } |
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96 } |
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97 |
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98 ArtifactDatabaseClient adc = ArtifactDatabaseClientFactory |
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99 .getInstance() |
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100 .getArtifactDatabaseClient(getLocale(request)); |
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101 |
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102 this.setHeaders(mode, mimeType, response, request); |
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103 |
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104 OutputStream outputStream = response.getOutputStream(); |
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105 adc.doOutput( |
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106 sm.getSelectedArtifactFactory(), |
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107 sm.getCurrentArtifact(), |
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108 outputStream, |
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109 target, |
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110 mode, |
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111 mimeType, |
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112 ips); |
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113 |
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114 outputStream.flush(); |
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115 outputStream.close(); |
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116 } |
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117 else if (exportMode == null) { |
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118 Collection<OutputParameter> inputParameter = outputMode |
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119 .getOutputParameters(); |
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120 Collection<InputParameter> ips = null; |
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121 if (inputParameter != null) { |
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122 ips = new ArrayList<InputParameter>(inputParameter.size()); |
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123 Iterator<OutputParameter> it = inputParameter.iterator(); |
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124 while (it.hasNext()) { |
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125 String name = it.next().getName(); |
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126 String[] values = request.getParameterValues(name); |
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127 InputParameter ip = new DefaultInputParameter(name, |
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128 values); |
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129 ips.add(ip); |
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130 } |
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131 } |
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132 |
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133 ArtifactDatabaseClient adc = ArtifactDatabaseClientFactory |
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134 .getInstance() |
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135 .getArtifactDatabaseClient(getLocale(request)); |
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136 |
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137 this.setHeaders(target, mimeType, response, request); |
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138 |
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139 OutputStream outputStream = response.getOutputStream(); |
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140 adc.doOutput( |
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141 sm.getSelectedArtifactFactory(), |
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142 sm.getCurrentArtifact(), |
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143 outputStream, |
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144 target, |
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145 mode, |
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146 mimeType, |
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147 ips); |
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148 |
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149 outputStream.flush(); |
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150 outputStream.close(); |
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151 } |
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152 else { |
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153 if (outputMode == null) { |
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154 log.error("Outputmode is not supported."); |
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155 } |
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156 else if (!exportMode.getMimeType().equals(mimeType)) { |
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157 log.error("MimeType "+mimeType+" wis not supported."); |
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158 } |
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159 // TODO FIXME: Fehlerbehandlung |
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160 } |
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161 } |
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162 return super.execute(mapping, form, request, response); |
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163 } catch (Exception e) { |
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164 log.error(e, e); |
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165 request.setAttribute( |
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166 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, e |
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167 .getMessage()); |
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168 return super.getExceptionForward(mapping); |
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169 } |
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170 } |
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171 |
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172 protected void setHeaders(String target, String mimeType, |
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173 HttpServletResponse response, |
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174 HttpServletRequest request) { |
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175 log.debug("DoExportAction.setHeaders"); |
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176 try { |
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177 response.setHeader("Content-Type", mimeType); |
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178 String fileName = "GNVEXPORT_" + System.currentTimeMillis() + "."; |
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179 |
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180 target = target.toLowerCase(); |
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181 log.debug("******************************************************"); |
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182 log.debug("TARGET: " + target); |
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183 log.debug("MIMETYPE: " + mimeType); |
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184 |
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185 if (target.equals("chart")) { |
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186 fileName = fileName |
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187 + mimeType.substring(mimeType.indexOf("/") + 1); |
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188 } |
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189 else if (target.equals("histogram")) { |
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190 fileName = fileName |
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191 + mimeType.substring(mimeType.indexOf("/") + 1); |
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192 } |
589
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193 else if (target.equals("img")) { |
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194 fileName = fileName |
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195 + mimeType.substring(mimeType.indexOf("/") + 1); |
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196 } |
398
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197 else if (target.equals("pdf")) { |
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198 fileName = fileName + "pdf"; |
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199 } else if (target.equals("svg")) { |
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200 fileName = fileName + "svg"; |
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201 } else if (target.equals("csv")) { |
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202 fileName = fileName + "csv"; |
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203 } else if (target.equals("zip")) { |
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204 fileName = fileName + "zip"; |
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205 } else if (target.equals("wms")) { |
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206 fileName = fileName + "xml"; |
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207 } else { |
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208 fileName = fileName + "txt"; |
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209 } |
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210 log.debug("FileName for Export: " + fileName); |
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211 response.setHeader("Content-Disposition", "attachment;filename=" |
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212 + fileName); |
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213 } catch (Exception e) { |
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214 log.error(e, e); |
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215 } |
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216 } |
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217 } |